Test bench for realizing six-component force model building method and method for measuring vector thrust

Abstract

The invention discloses a six-component model construction method, and the method comprises the steps: S10), constructing force measurement planes: respectively constructing a first force measurementplane and a second force measurement plane; S20), constructing an O-XYZ rectangular coordinate system: taking the intersection point of the axis of a test piece and the first force measurement plane as the origin of a coordinate system, enabling X-axis to coincide with the axis of a tested object, enabling Y-axis to pass by the origin O to be perpendicular to X-axis and parallel to a horizontal plane, and enabling Z-axis to pass by the origin O to be perpendicular to X-axis and parallel to a vertical plane; S30), arranging force measurement points: setting a main thrust measurement point, a first horizontal force measurement point and a second vertical force measurement point in the first force measurement plane, and setting a second horizontal force measurement point, a second vertical force measurement point and a third vertical force measurement point in the second force measurement plane. According to the method provided by the invention, the first force measurement plane, the second force measurement plane and the force measurement points are reasonably constructed for the test piece, and the layout is reasonable. The method provides the basis for the measurement of a vectoredforce.

Description

technical field [0001] The invention relates to the technical field of thrust measurement, in particular to a method for constructing a six-component force model, a method for measuring vector thrust, and a test bench. Background technique [0002] Engine testing and testing technology is an important part of solid propulsion technology, and thrust vector eccentricity is an important parameter that needs to be measured in engine testing and testing. To study the eccentricity of the engine thrust vector, a large number of repeated experiments are required, and it is impossible to put all these experiments into flight tests. The main reason is that the flight test has high cost, long period, small amount of information harvested, risky, and requires a lot of manpower. This requires the ground test of the engine. The ground test of the engine refers to the static test of the system on the ground according to specific conditions and environmental requirements, and obtains infor...

AI Technical Summary

Problems solved by technology

The main reason is that the flight test is costly, long cycle, small amount of information harvested, risky, and requires a lot of manpower

This requires the ground test of the engine. The ground test of the engine refers to the static test of the system on the ground according to specific conditions and environmental requirements, and obtains information describing various performance indicators of the system, so as to solve the problems in the process of engine thrust eccentricity test. The key problem, however, in the prior art, there is no mature technology for the experimental equipment of the engine vector force, especially the experimental equipment of the six-component force vector force of the engine. At the same time, the six-component force vector thrust measurement technology in the prior art, especially It is a horizontal six-component force vector thrust measurement technology, which does not consider the gravity of the engine or there is no good way to consider the influence of the gravity of the engine, resulting in large errors in the measurement results

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